CSRe的Schottky束流诊断系统的研制  

Schottky beam diagnostic system at CSRe

作　　者：臧永东[1,2] 毛瑞士[1] 武军霞[1] 赵铁成[1] 徐瑚珊[1] 涂小林[1,2] 原有进[1] 肖国青[1] 

机构地区：[1]中国科学院近代物理研究所,兰州730000 [2]中国科学院研究生院,北京100049

出　　处：《强激光与粒子束》2011年第7期1899-1903,共5页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目(10925526;10875154)

摘　　要：介绍了Schottky信号的产生原理。研制了CSRe的Schottky束流诊断系统,该系统由一对平行的Schottky电极板、四分之一波螺旋谐振腔、低噪声放大器及数据获取系统组成。利用能量为481.88 MeV/u的78Kr36+束流对Schottky束流诊断系统进行灵敏度测试。结果表明该系统能够测量流强大于82 nA的束流。Schottky diagnostics are often used in circular accelerators and in storage rings.A brief introduction on the longitudinal Schottky signal basics and a report on the elements of Schottky diagnostic system at CSRe are presented.The system consists of a pair of Schottky electrodes,λ/4 helical resonator,low noise amplifier and data acquisition device.Test measurement results of the frequency measurement and sensitivity measurement with 78Kr36＋ beam of 481.88 MeV/u circulating in the storage ring CSRe are obtained.The results show that the system is sensitive to the beam current larger than 82 nA.

关 键 词：Schottky束流诊断 冷却储存环 四分之一波螺旋谐振腔 快速傅里叶变换 灵敏度 

分 类 号：TL817[核科学技术—核技术及应用]